package com.atguigu.gulimall.ware.listener;

import com.atguigu.common.to.mq.OrderTo;
import com.atguigu.common.to.mq.StockLockedTo;
import com.atguigu.gulimall.ware.service.WareSkuService;
import com.rabbitmq.client.Channel;
import org.springframework.amqp.core.Message;
import org.springframework.amqp.rabbit.annotation.RabbitHandler;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.io.IOException;

/**
 * @Author : Jungle
 * @Description :
 */
@RabbitListener(queues = {"stock.release.stock.queue"})
@Service
public class StockReleaseListener {
    @Autowired
    private WareSkuService  wareSkuService;

    /**
     * 1、库存自动解锁
     * 下订单成功，库存锁定成功，接下来的业务调用失败，导致订单回滚，之前锁定的库存就要自动解锁
     * 2、订单失败
     *  锁库存失败
     *  只要解锁库存消息失败，一定要告诉服务解锁失败
     */
    @RabbitHandler
    public void handleStockLockedRelease(StockLockedTo to, Message message, Channel channel) throws IOException {
        System.out.println("收到解锁库存的消息");
        try {
            wareSkuService.unlockStock(to);
            channel.basicAck(message.getMessageProperties().getDeliveryTag(),false);
        } catch (Exception e) {
           // 异常状态消息重新入队
           channel.basicReject(message.getMessageProperties().getDeliveryTag(),true);
        }
    }

    /**
     * 订单取消，主动发起解锁库存
     * @param orderTo
     * @param message
     * @param channel
     * @throws IOException
     */
    @RabbitHandler
    public void handleOrderCloseRelease(OrderTo orderTo, Message message, Channel channel) throws IOException {
        System.out.println("订单关闭准备解锁库存。。。");
        try {
            wareSkuService.unlockStock(orderTo);
            //当前消息是否是被第二次及以后派过来的
            //Boolean redelivered = message.getMessageProperties().getRedelivered();
            channel.basicAck(message.getMessageProperties().getDeliveryTag(),false);
        } catch (Exception e) {
            // 异常状态消息重新入队
            channel.basicReject(message.getMessageProperties().getDeliveryTag(),true);
        }

    }
}
